Senior Software Engineer, Client Systems (C++)

Location: San Mateo, California, United States. Hybrid office schedule with onsite work Tuesday, Wednesday, and Thursday; Monday and Friday presence is optional.

Salary: $195,780–$242,100 USD annual base pay, plus equity and benefits eligibility.

Company

Roblox develops a platform and tools for creating shared 3D immersive experiences used by millions of people and developers.

What you will do

• Build C++ libraries and modules inside the proprietary Roblox game engine.
• Develop the application foundation connecting Luau UI, the core game engine, and Android and iOS platform abstractions.
• Drive frontend C++ strategy and extend the Roblox interface layer.
• Design frameworks and reusable components used by multiple engineering teams.
• Diagnose memory and framerate issues affecting large-scale client performance.
• Collaborate with Engineering, Product, Design, surface owners, internal teams, and community developers.

Requirements

• 4+ years of experience with significant system or mobile programming knowledge.
• Strong C++ skills and the ability to write high-quality, performant code.
• Experience building frameworks and libraries with clean, modular, testable architecture.
• Understanding of software performance considerations, including mobile platforms.
• Self-directed ownership of projects throughout the full lifecycle.
• Strong collaboration, communication, and interpersonal skills.

Nice to have

• Experience with Lua.

Culture & Benefits

• Work on the future of human interaction and shared 3D experiences.
• Build foundational technology used across a large engineering organization.
• Full-time employees are eligible for equity compensation and company benefits.
• Equal employment opportunities and reasonable accommodations are provided during the hiring process.
• For US-based roles, certain US visa categories may not be supported and future H-1B sponsorship may be unavailable.